JSFiddle - React, Tailwind, and code Playground
HTML
<table id="mainDiv"></table>
<script>
var str = '';
for(i = 0;i < 8 ; i++){
str += '<tr>';
for(j = 0; j < 8 ;j++){
str += '<td ></td>';
}
str += '</tr>';
}
$("#mainDiv").html(str);
$("tr td:nth-child(4)").css("background-color", "#bbbbff");
</script>
CSS
mainDiv{
width:416px;
height:416px;
}
td{
border:1px solid black;
width:50px;
height:50px;
}